Bump org.openapitools:openapi-generator from 7.20.0 to 7.21.0

Bumps [org.openapitools:openapi-generator](https://github.com/openapitools/openapi-generator) from 7.20.0 to 7.21.0.
- [Release notes](https://github.com/openapitools/openapi-generator/releases)
- [Changelog](https://github.com/OpenAPITools/openapi-generator/blob/master/docs/release-summary.md)
- [Commits](OpenAPITools/openapi-generator@v7.20.0...v7.21.0)

---
updated-dependencies:
- dependency-name: org.openapitools:openapi-generator
  dependency-version: 7.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

client/deployment/pom.xml

@@ -11,7 +11,7 @@
   <name>Quarkus - OpenAPI Generator - Client - Deployment</name>
 
   <properties>
-    <version.org.openapitools>7.20.0</version.org.openapitools>
+    <version.org.openapitools>7.21.0</version.org.openapitools>
     <version.org.slf4j>2.0.17</version.org.slf4j>
     <version.com.github.jknack>4.3.1</version.com.github.jknack>
   </properties>

pom.xml

@@ -38,7 +38,7 @@
     <version.org.wiremock>3.13.2</version.org.wiremock>
     <version.com.github.tomakehurst>2.35.2</version.com.github.tomakehurst>
     <version.io.swagger.parser>2.1.39</version.io.swagger.parser>
-    <version.org.openapitools>7.20.0</version.org.openapitools>
+    <version.org.openapitools>7.21.0</version.org.openapitools>
     <version.com.github.javaparser>3.28.0</version.com.github.javaparser>
   </properties>
   <dependencyManagement>